Well, atleast http://gw2.luna-atra.fr/skills_tool/ claims warriors can also use 2h swords. But there apparently aren't any 2h axes in the game and in that regards I agree with you; I too really love 2h axes and if/when I roll a warrior alt I'd love to wield one.

- Hand: n., A singular instrument worn at the end of the human arm and commonly thrust into somebody's pocket. - Ambrose Bierce, The Devil's Dictionary

I was a bit "huh" when they didn't exist.
But it might be something as simple as they won't add different weapons they want to at launch to make it less to ballance. Weapons is things they can add with expansions after all.

As mentioned before warriors can wield 2h swords, guardians as well. In addition to 2h maces. I was sad to find out there aren't any 2h axes too, would love that on a Charr Warrior. Hope they'll add that later on. The reason for it not being ingame is probably due to Arenanet also having to create 5 new warrior skills then who are different from DW axes and 2h sword.

Great Axes function essentially the same as Hammers, they just have blades on the end. You can still smash and pummel people with great axes because that's how they work, they just cut a little bit of weight and direct the force more acutely.

What I'm trying to say is that their function is already covered by the Hammer and Greatsword, and are thus not really needed.

I was disappointed with the lack of greataxes, too, but with all that they already have to juggle with the plethora of weapons we do have, I can understand them dropping it. They may eventually add them in a future patch, though, so here's hoping.

Also, on kind of a side-note, in GW1, some of the skins were obscenely large for a one-handed weapon - the Fellblade, for instance, which was a one-hander in GW1, but is becoming a two-hander in GW2; some of the axe skins in GW2 may give the impression of a two-handed axe (Stygian Reaver, I'm looking at you).

I was disappointed with the lack of greataxes, too, but with all that they already have to juggle with the plethora of weapons we do have, I can understand them dropping it. They may eventually add them in a future patch, though, so here's hoping.

Also, on kind of a side-note, in GW1, some of the skins were obscenely large for a one-handed weapon - the Fellblade, for instance, which was a one-hander in GW1, but is becoming a two-hander in GW2; some of the axe skins in GW2 may give the impression of a two-handed axe (Stygian Reaver, I'm looking at you).

You got to keep in mind, that unlike other MMOs, Weapons dictate around 50% of your skills, adding another weapon would give them more work to add more skills. They can add weapons in expansions of course. They probably couldn't find a niche for a Great-axe to fill that wasn't already present, doesn't mean they can't come up with one in the future.

"Questions are for those seeking answers. Those who have answers are those who have asked questions." -Mike R. (Malthurius)

Like said before they will get added in later xpacs. It would be the best way to add new skills rather than changing the UI we have now. Kind of makes me wonder what other things they could add to other professions.